The framework agreement is for the provision of plumbing services, mainly hourly services, materials and a combination of these, primarily Rena, Elverum and Hamar. The objective of the framework agreement is to cover the Norwegian Defence Estates Agency ́s need for services in connection with operation, maintenance and new procurements of plumbing installations in the mentioned areas. The assignment is further described in the tender documentation part III.The framework agreement has a duration of two years, with an option for an extension for 1+1+1 year, totalling up to 5 years. The framework agreement shall be a parallel framework agreement with up to 3 tenderers. Call-offs are initially awarded according to the surging principle, but call-offs with an estimated value of more than NOK 1,000,000 excluding VAT will be awarded after the tender contest is reopened (mini competition). Excluding VAT. The framework agreement ́s announced and maximum value is NOK 90,000,000. Excluding VAT. The contracting authority reserves the right to cancel the competition if there is a justifiable reason, e.g. if planned financing is withdrawn or lacks approval from political or military quarters.